The following links provide information and technical guidance for software developers and transmitters who are interested in developing software for the Modernized e-File Form 1041. You will find the XML Schemas, Business Rules, and other useful information separated by tax year.
| Tax Year | Form Type |
| 2019 | 1041 |
| 2018 | 1041 |
| 2017 | 1041 |
| 2016 | 1041 |